Installation Guide
Taco LTR and LTA-2 Series 24 Volt LWCO Competitive Wiring Cross Reference
24 VAC Models with 24 VAC Burner Circuits
TACO LTA0243S-2
NH
COM
NC NO
BURNER
CIRCUIT
HOT
NEUTRAL
24 VAC
CIRCUIT
RB-24E
BURNER
CIRCUIT
HOT
NEUTRAL
24 VAC
CIRCUIT
HYDROLEVEL 1100
BURNER
CIRCUIT
HOT
NEUTRAL
24 VAC
CIRCUIT
Y
ellow
Wire
Y
ellow
Wire
W
hite
Wire
R
ed
Wire
Y
ellow
W
ire
Y
ellow
W
ire
W
hite
W
ire
R
ed
W
ire
McDONNELL & MILLER
FACTORY
I
NSTALLED
JUMPER
TACO LTR0243T-1
BURNER
CIRCUIT
HOT
NEUTRAL
24 VAC
CIRCUIT
Y
ellow
W
ire
Y
ellow
W
ire
W
hite
W
ire
R
ed
W
ire
21
P1
P2 A
BURNER
CIRCUIT
HOT
NEUTRAL
24 VAC
CIRCUIT
JUMPER
HYDROLEVEL 24
24 VAC Models with 120 VAC Burner Circuits
TACO LTA0243S-2
NHCOM NC NO
BURNER
CIRCUIT
HOT
NEUTRAL
120 VAC
CIRCUIT
24 VAC
TRANSFORMER
HYDROLEVEL 24
21P1 P2 A
BURNER
CIRCUIT
HOT
NEUTRAL
120 VAC
CIRCUIT
24 VAC
TRANSFORMER
76